Merge branch 'new-year-developments' into '108-id_method-given-input'

# Conflicts:
#   examples/image_example.py
#   plotid/plotoptions.py
#   plotid/tagplot.py
#   plotid/tagplot_image.py
#   plotid/tagplot_matplotlib.py
#   tests/test_tagplot_image.py
#   tests/test_tagplot_matplotlib.py